diff options
Diffstat (limited to 'src/mscorlib/shared/System/IO/Path.Windows.cs')
| -rw-r--r-- | src/mscorlib/shared/System/IO/Path.Windows.cs | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/mscorlib/shared/System/IO/Path.Windows.cs b/src/mscorlib/shared/System/IO/Path.Windows.cs index d6f0c628c3..1e573cd95d 100644 --- a/src/mscorlib/shared/System/IO/Path.Windows.cs +++ b/src/mscorlib/shared/System/IO/Path.Windows.cs @@ -136,10 +136,14 @@ namespace System.IO // path on the current drive), "X:" (a relative path on a given drive, // where X is the drive letter), "X:\" (an absolute path on a given drive), // and "\\server\share" (a UNC path for a given server and share name). - // The resulting string is null if path is null. + // The resulting string is null if path is null. If the path is empty or + // only contains whitespace characters an ArgumentException gets thrown. public static string GetPathRoot(string path) { if (path == null) return null; + if (string.IsNullOrWhiteSpace(path)) + throw new ArgumentException(SR.Arg_PathIllegal, nameof(path)); + PathInternal.CheckInvalidPathChars(path); // Need to return the normalized directory separator |